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IMPROVED DEVICE POR CLOSING DOORS, GATES, 6to.

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TO ALL WI'IOM IT MAY COIICERN:

Be it known that I, LEVI S. DEMIG, of Newington, county of Hartford, and State of Connecticut, have invented a certain new and useful improvement in Device for Closing Doors, Gates, 8vo.; and to enable others skilled to make and use the same, I will proceed to describe its construction and operation by referring to the drawings, in which the same letters indicate like parts in each of the rigures The nature of this improvement will be understood from the specification and drawings.

The object desired to be attained thereby is to secure the greatest action of the weight upon the door at the point when the door is closed. To this end, long and perseverant e'orts have been made to produce that i result with but partial success. Usually they are made so that the action is equal at all points, or so that the greatest pressure will be exerted at some point (on the door) when quite or partially open; by this improvement the greatest pressure is exerted upon the door when the door is closed. This is effected by means of`aweigl1ted lever segment with a pulley, or hinge-pulley, and' cord, to form the connection of the two (the lever and pulley) together.. These may be arranged so as to workeither outside or inside of the ceiling; but it is believed that it will be found to work the best and in the most desirable manner inside of the ceiling.

In the accompanying drawings are shown views illustrative of this improvement, in which- Figure l is a front elevation, showing the partition or ceiling broken away so as to show the lever, weight, and segment.

Figuren? is a top view. i

a is the door; yZ2 are the jambs or casings; c is the wall or ceiling; d are hinges; e is a part or the whole of a pulley, secured to the door by mean/s of the but d, or by itself, having tlanches secured thereto in a proper manner; gis a weight; it is a lever; fis' a segment; z'is a bracket. Thevmode of putting the parts together is too plainly shown to need a more full description, and is susceptible of indefinite variations. n is a cord for forming connection. Now the pulley, e, is first secured, either t0 the hinge cl or to the door a, by means of said hinges d, or by means of proper llanches made or cast on to said pulleys, the wall or ceiling being broken away (against the point where the device is arranged) to show its operation. The lever It, weright g, and segmentf may be cast or made in separate pieces, and secured together, or they may be made in one piece, and when thus made secured by means of the bracket z' to the jamb or wall, so that the upper edge of the segmentf will be in a horizontal uline with the pulley e. This pulley, e, may be made separate or attached to the hinge d, (which constitutes in itself, as I believe, when made with the hinge d, an improved article of manufacture.) This pulley, e, and the weighted lever, h, are connected by the cord n, so that when the door is closed and the full weight rests upon the cord the lever will be in about a horizontal position. The segment,f, should be made of such dimensions as to allow a suiicien/tilength of cord to be drawn over the surface thereof over the pulley, e, to allow the door to swing open against the wall, and also so as to bring the weight g nearly into aperpendicular position over the bracket, so as to allow the door to stand open against the wall without the counteraction of the weight. I

I believe I have thus shown the nature, construction, and operation of this improvement so as to enable others skilled to make the same therefrom.

What I claim, therefore, and desire to secure by Letters Patent, is-

The employment of the lever, segment, weight, h j' g, in combination with the pulley e, cord n, substantially as and for the purpose describedA LEVI S. DEMING. [1.. 8.]

Witnesses:

E. W. BLISS, JEREMY W. Buss. 

